<?php
namespace App\Services\Core\Store\Wechat;



use App\Helpers\Logger\SLogger;

class JssdkService {
    private $appId;
    private $appSecret;



    public function __construct($appId, $appSecret,$media_id) {
        $this->appId = $appId;
        $this->appSecret = $appSecret;
        $this-> media_id = $media_id;


    }
    function getaccesstoken()
    {

        $data = json_decode($this->get_php_file("access_token.php"));
        if ($data->expire_time < time()) {
            // 如果是企业号用以下URL获取access_token
            // $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";
            $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
//       $url =  "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET";
            $res = json_decode($this->httpGet($url));
            $access_token = $res->access_token;
            if ($access_token) {
                $data->expire_time = time() + 144000;
                $data->access_token = $access_token;
                $this->set_php_file("access_token.php", json_encode($data));
            }
        } else {
            $access_token = $data->access_token;
        }
        return $access_token;

    }
    private function httpGet($url) {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_TIMEOUT, 500);
        // 为保证第三方服务器与微信服务器之间数据传输的安全性，所有微信接口采用https方式调用，必须使用下面2行代码打开ssl安全校验。
        // 如果在部署过程中代码在此处验证失败，请到 http://curl.haxx.se/ca/cacert.pem 下载新的证书判别文件。
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($curl, CURLOPT_URL, $url);

        $res = curl_exec($curl);
        curl_close($curl);

        return $res;
    }


    private function get_php_file($filename) {
        return trim(substr(file_get_contents($filename), 15));
    }
    private function set_php_file($filename, $content) {
        $fp = fopen($filename, "w");
        fwrite($fp, "<?php exit();?>" . $content);
        fclose($fp);
    }

    function aa($media_id)
    {
        $accessToken = $this->getaccesstoken();
//        var_dump($accessToken);
        $url = "http://file.api.weixin.qq.com/cgi-bin/media/get?access_token=".$accessToken."&media_id=".$media_id;

        //恒光微信的方式，接收到
        $strr = file_get_contents($url);
//        var_dump($strr);
        //先检查一下是否过期
        if(strpos($strr,'errcode'))
        {
            $data = json_decode($this->get_php_file("access_token.php"));
            $urll = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
            $res = json_decode($this->httpGet($urll));
            $access_token = $res->access_token;
            $data->expire_time = time()+7200;
            $data->access_token = $access_token;
            $this->set_php_file("access_token.php", json_encode($data));

            return self::aa($media_id);
        }

        return $strr;
    }

}

